Published Dashboard Content View Error


I have several widgets on my dashboard, but a few of them show up with an error that says the content is only viewable on the Smartsheet app (see attached). I've tried all the combinations of widget settings I can think of (take no action, open source item, link to published URL to view the source item) and none of them seem to change anything. I have all the corresponding reports set to publish view, so they should all be accessible to anyone outside my organization. Can anyone help?

Thank you!